[Simon_ORourke]

I remember being blown away by something similar on the venerable Commodore Amiga in the early 90s. Can't remember the name of the app, but you'd adjust a few parameters and line by line a terrain may would appear.

[unwind]

Perhaps it was https://en.m.wikipedia.org/wiki/VistaPro ?

[ramses0]

`mars.com` - voxel terrain demo?

https://www.pouet.net/prod.php?which=4662

https://youtu.be/_zSjpIyMt0k

...1993

[ElCapitanMarkla]

I had that or something very similar on our old Windows 95 machine. I spent quiet a bit of time flying around